Interesting Fact about Lithium Battery
The lithium battery was first developed in 1912 by G.N. Lewis but the rechargeable lithium battery only available in the early 1970s.
Lithium-ion batteries are rechargeable, because lithium ions and electrons move easily back into negative electrodes.
The typical estimated life of a Lithium-Ion battery is about two to three years or 300 to 500 charge cycles, whichever occurs first.
The electrodes of a lithium-ion battery are made of lightweight lithium and carbon.
Lithium-ion batteries have a low self-discharge rate, so it's possible that a battery stored for four years will still be fine. If the voltage of a lithium-ion cell drops below a certain level, it's ruined.